That is true. Technically my ELAC Debut 2.0 B6.2's are "harder" to drive but my Polk RT55i's "easier" to drive but yet the ELAC's are easier to drive. Bass stands out a lot on the ELACs without touching anything but my Polk's despite them having double the woofers, you need to crank that bass & volume knob.4) Likewise the speaker to AMP interaction can also have an effect on the sound. It's important to match the two (look for impedance capabilities and if your speaker has lower sensitivity you need a more powerful AMP. If all things are equal get speakers with the highest sensitivity.
This was before my "Audiophile" hobby:
- OFC wire is a lot better than CCA wire.
- Magnet size (to an extent) matters
- Paper cone tweeters are terrible
- Bi-wiring is a waste
- HDMI ARC can make TV's flicker